Answer: object type conversion : Questions « Type Casting « SCJP

4.6.6.Answer: object type conversion

The code will compile and run.



The cast in 'fido = (Dog)anim;' is required, because changing an Animal to a Dog is going down the tree.

4.6.Questions
	4.6.1.	Object references can be converted in both method calls and assignments, and the rules are identical(True/False)
	4.6.2.	Answer: reference method call and assignment
	4.6.3.	What is the output(object and primitive type)?
	4.6.4.	Answer: object and primitive type
	4.6.5.	What is the output(object type conversion)?
	4.6.6.	Answer: object type conversion
	4.6.7.	What is the output(interface type)?
	4.6.8.	Answer: interface type
	4.6.9.	What is the output(boolean operator and short type)?
	4.6.10.	Answer: boolean operator and short type
	4.6.11.	What are the possible values of b in the following code?
	4.6.12.	Answer: casting between long and byte
	4.6.13.	What are the possible values of the result l in the following code?
	4.6.14.	Answer: assignment between byte and long
	4.6.15.	For the following hierarchy and code, Which of the following saveEvent calls would run without an exception?
	4.6.16.	Answers: exception hierarchy
	4.6.17.	Which of the following Java statements will compile and execute without error?
	4.6.18.	Answer: implement Runnable interface
	4.6.19.	What will happen when you try to compile and run this code?
	4.6.20.	Answer: interface casting
	4.6.21.	What will happen when you call this method with int primitives as in the following fragment?
	4.6.22.	Answer: method overloading
	4.6.23.	Which of the following Java code fragments compiles and executes without error?
	4.6.24.	Answer: interface type casting
	4.6.25.	What will be the result of trying to compile the following class?
	4.6.26.	Answer: instanceof object

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